xref: /netbsd-src/sys/netipsec/ipsec6.h (revision 796c32c94f6e154afc9de0f63da35c91bb739b45)
1 /*	$NetBSD: ipsec6.h,v 1.20 2017/10/03 08:56:52 ozaki-r Exp $	*/
2 /*	$FreeBSD: src/sys/netipsec/ipsec6.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $	*/
3 /*	$KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 itojun Exp $	*/
4 
5 /*
6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. Neither the name of the project nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 /*
35  * IPsec controller part.
36  */
37 
38 #ifndef _NETIPSEC_IPSEC6_H_
39 #define _NETIPSEC_IPSEC6_H_
40 
41 #include <net/pfkeyv2.h>
42 #include <netipsec/keydb.h>
43 #include <netinet6/in6_pcb.h>
44 
45 #ifdef _KERNEL
46 extern int ip6_esp_trans_deflev;
47 extern int ip6_esp_net_deflev;
48 extern int ip6_ah_trans_deflev;
49 extern int ip6_ah_net_deflev;
50 extern int ip6_ipsec_ecn;
51 extern int ip6_esp_randpad;
52 extern struct secpolicy ip6_def_policy;
53 
54 struct inpcb;
55 struct in6pcb;
56 
57 /* KAME compatibility shims */
58 #define	ipsec6_getpolicybyaddr	ipsec_getpolicybyaddr
59 #define	ipsec6_getpolicybysock	ipsec_getpolicybysock
60 
61 int ipsec6_delete_pcbpolicy (struct in6pcb *);
62 int ipsec6_set_policy (struct in6pcb *, int, const void *, size_t, kauth_cred_t);
63 int ipsec6_get_policy (struct in6pcb *, const void *, size_t, struct mbuf **);
64 struct secpolicy *ipsec6_checkpolicy (struct mbuf *, u_int,
65     u_int, int *, struct in6pcb *);
66 struct secpolicy * ipsec6_check_policy(struct mbuf *,
67 				struct in6pcb *, int, int*,int*);
68 int ipsec6_in_reject (struct mbuf *, struct in6pcb *);
69 
70 struct tcp6cb;
71 
72 size_t ipsec6_hdrsiz (struct mbuf *, u_int, struct in6pcb *);
73 size_t ipsec6_hdrsiz_tcp (struct tcpcb*);
74 
75 struct ip6_hdr;
76 const char *ipsec6_logpacketstr (struct ip6_hdr *, u_int32_t);
77 
78 /* NetBSD protosw ctlin entrypoint */
79 void * esp6_ctlinput(int, const struct sockaddr *, void *);
80 void * ah6_ctlinput(int, const struct sockaddr *, void *);
81 
82 struct m_tag;
83 int ipsec6_common_input(struct mbuf **, int *, int);
84 int ipsec6_common_input_cb(struct mbuf *, struct secasvar *, int, int);
85 int ipsec6_process_packet(struct mbuf*, const struct ipsecrequest *);
86 #endif /*_KERNEL*/
87 
88 #endif /* !_NETIPSEC_IPSEC6_H_ */
89